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ER630 (17-4 PH) stainless steel TIG (GTAW) welding alloy is a martensitic precipitation-hardening alloy that provides an outstanding combination of high strength, good corrosion resistance, good mechanical properties at temperatures up to 600°F (316°C), good strength in both base metal and welds, and short-time, low-temperature heat treatments that minimize warpage and scaling. ER630 (17-4PH) is an outstanding choice for applications requiring high strength and hardness, as well as corrosion resistance. It is more cost effective than many high nickel, non-ferrous alloys. ER630 (17-4PH) plate under 4 in. can be welded without pre-heating, but interpass up to 300°F (149°C) are commonly used. Conforms to ANSI/AWS A5.9.
Features
Stainless steel ER630 (17-4PH) TIG welding rod welds ASTM A-564 Type 630 alloys
Martensitic precipitation-hardening alloy that can also be used on stainless steel
High strength, good corrosion resistance and good mechanical properties
160,000 psi tensile strength (as welded)
145,000 psi yield strength (as welded)
5.0% elongation (as welded)
108 HRB Rockwell B hardness (as welded)
327 HB Brinell hardness (as welded) Conforms to ANSI/AWS A5.9 and ASME SFA 5.9 ER 630, AMS 5825
Specifications
AWS A5.9: ER 630
Includes
ER630 (17-4PH) stainless steel TIG (GTAW) welding alloy 1/16 x 36 in. x 10 lb. box
